Congratulations on quitting! I have never smoked but I work in theatre where it seems like EVERYONE else does. More and more people are quitting, however, which makes my heart sing. :)
My boss also used the e-cigs. This is a very tightly-wound woman who had a 3-pack-a-day habit and swore that it wasn't proven that smoking causes lung cancer. After her 5-years-clear breast cancer checkup, her doctor started getting on her about the smoking. The e-cigs worked for her, and she's been smoke-free for nearly two years. She's much more easy-going, less likely to blow up at work, and I can stand in her office without gagging from the smell of smoke coming off her clothes.
Keep up the good work! I have seen so many of my friends try to quit and fall (or jump) off the wagon when things get tough. But be strong and you can do it! *hugs*